Chemically combined with water, especially existing in the form of a hydrate.
- Simple past tense and past participle of hydrate.
- We took the powdered milk and hydrated it until it was drinkable.
Variant of hydrate
a compound formed by the chemical combination of water and some other substance in a definite molecular ratio: plaster of Paris, 2CaSO·HO, is a hydrate
Origin of hydratehydr(o)- + -ate